esp_ble_conn_mgr no disconnect event (AEGHB-663)

[AlejandroHuerta]

Answers checklist.

• I have read the documentation ESP-IDF Programming Guide and the issue is not addressed there.
• I have updated my IDF branch (master or release) to the latest version and checked that the issue is present there.
• I have searched the issue tracker for a similar issue and not found a similar issue.

IDF version.

5.2.1

Espressif SoC revision.

esp32-c3 (QFN32) v0.4

Operating System used.

Windows

How did you build your project?

VS Code IDE

If you are using Windows, please specify command line type.

None

Development Kit.

esp32-c3-devkitm-1

Steps to reproduce.

1. Build spp_server
2. Flash to device
3. Connect to device via another bluetooth device
4. Disconnect via another device
5. Observer that a connect message was outputted but not a disconnect message

Build Logs.

No response

More Information.

Here's the logs from the serial output

I (422) blecm_nimble: BLE Host Task Started
I (422) blecm_nimble: No characteristic(0x2a00) found
I (422) blecm_nimble: No characteristic(0x2a01) found
I (422) blecm_nimble: No characteristic(0x2a05) found
I (432) blecm_nimble: No characteristic(0x2b3a) found
I (432) blecm_nimble: No characteristic(0x2b29) found
I (442) app_main: Callback for read
I (452) NimBLE: GAP procedure initiated: stop advertising.

I (452) NimBLE: GAP procedure initiated: advertise;
I (462) NimBLE: disc_mode=2
I (462) NimBLE: adv_channel_map=0 own_addr_type=0 adv_filter_policy=0 adv_itvl_min=256 adv_itvl_max=256
I (472) NimBLE:

I (472) main_task: Returned from app_main()
I (7882) app_main: ESP_BLE_CONN_EVENT_CONNECTED

I (17692) NimBLE: GAP procedure initiated: advertise;
I (17692) NimBLE: disc_mode=2
I (17692) NimBLE: adv_channel_map=0 own_addr_type=0 adv_filter_policy=0 adv_itvl_min=256 adv_itvl_max=256
I (17702) NimBLE:

[lisir233]

Hi, @AlejandroHuerta Thanks for the feedback, for some reason the disconnect event is not being reported to app_ble_conn_event_handler. as a temporary solution you can add
esp_event_post(BLE_CONN_MGR_EVENTS, ESP_BLE_CONN_EVENT_DISCONNECTED, NULL, 0, portMAX_DELAY).
to

esp-iot-solution/components/bluetooth/ble_conn_mgr/src/esp_nimble.c

Line 1803 in d7b0715

esp_ble_conn_event_send(conn_session, ESP_BLE_CONN_EVENT_DISCONNECTED, NULL, 0, NULL);

We will fix this in a subsequent commit, thanks again for your feedback!